Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd2148be78cf08401f056ca6a98696330b3d8ab36bd158e1860b8268cc908a74a' 
  AND token = 'ONi85+RNP6+2CwkU5qbqbWSBJE7dIoQ7fLCs4cF8sw0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}